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v3.22.1

Segment Reporting (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Segment Reporting Information [Line Items] |  |
Product revenues | $ 267,657 | $ 288,535
Type of Revenue [Extensible List] | us-gaap:ProductMember | us-gaap:ProductMember
United States |  |
Segment Reporting Information [Line Items] |  |
Product revenues | $ 104,122 | $ 115,287
China |  |
Segment Reporting Information [Line Items] |  |
Product revenues | 38,353 | 33,515
South Korea |  |
Segment Reporting Information [Line Items] |  |
Product revenues | 21,175 | 24,640
Germany |  |
Segment Reporting Information [Line Items] |  |
Product revenues | 19,786 | 19,180
Romania |  |
Segment Reporting Information [Line Items] |  |
Product revenues | 12,755 | 15,085
Japan |  |
Segment Reporting Information [Line Items] |  |
Product revenues | 11,816 | 17,920
Other |  |
Segment Reporting Information [Line Items] |  |
Product revenues | 59,650 | 62,908
Non U.S. |  |
Segment Reporting Information [Line Items] |  |
Product revenues | $ 163,535 | $ 173,248

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